Kalanchoe plant named ‘Dokallasc’

ABSTRACT

A new and distinct cultivar of  Kalanchoe  plant named ‘Dokallasc’, characterized by its compact, upright and uniformly mounded plant habit; moderately vigorous growth habit; freely branching plant habit; glossy dark green-colored leaves; uniform, early and freely flowering habit; large bright orange-colored flowers; and excellent postproduction longevity.

Botanical designation: Kalanchoe blossfeldiana.

Cultivar denomination: ‘DOKALLASC’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct Kalanchoe plant, botanically known as Kalanchoe blossfeldiana and hereinafter referred to by the name ‘Dokallasc’.

The new Kalanchoe is a product of a planned breeding program conducted by the Inventor in De Lier, The Netherlands. The objective of the breeding program is to create new freely-branching and freely-flowering Kalanchoe plants with attractive leaf and flower coloration.

The new Kalanchoe plant originated from a cross-pollination made by the Inventor in De Lier, The Netherlands in 2011 of a proprietary selection of Kalanchoe blossfeldiana identified as code number KA-177, not patented, as the female, or seed, parent with Kalanchoe blossfeldiana ‘Petero’, disclosed in U.S. Plant Pat. No. 12,155, as the male, or pollen, parent. The new Kalanchoe plant was discovered and selected by the Inventor as a single flowering plant from within the progeny of the stated cross-pollination in a controlled environment in De Lier, The Netherlands in January, 2013.

Asexual reproduction of the new Kalanchoe plant by vegetative terminal cuttings in a controlled environment in De Lier, The Netherlands since 2014 has shown that the unique features of this new Kalanchoe plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Kalanchoe have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature, daylength and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Dokallasc’. These characteristics in combination distinguish ‘Dokallasc’ as a new and distinct Kalanchoe plant:

-   -   1. Compact, upright and uniformly mounded plant habit.     -   2. Moderately vigorous growth habit.     -   3. Freely branching plant habit.     -   4. Glossy dark green-colored leaves.     -   5. Uniform, early and freely flowering habit.     -   6. Large bright orange-colored flowers.     -   7. Excellent postproduction longevity.

Plants of the new Kalanchoe can be compared to plants of the female parent selection. Plants of the new Kalanchoe differ from plants of the female parent selection in the following characteristics:

-   -   1. Plants of the new Kalanchoe are more compact than plants of         the female parent selection.     -   2. Plants of the new Kalanchoe are more freely branching than         plants of the female parent selection.     -   3. Plants of the new Kalanchoe have larger flowers than plants         of the female parent selection.     -   4. Plants of the new Kalanchoe and the female parent selection         differ in flower color as plants of the female parent selection         have lighter orange-colored flowers.

Plants of the new Kalanchoe can be compared to plants of the male parent, ‘Petero’. Plants of the new Kalanchoe differ from plants of ‘Petero’ in the following characteristics:

-   -   1. Plants of the new Kalanchoe are more compact than plants of         ‘Petero’.     -   2. Plants of the new Kalanchoe are more freely branching than         plants of ‘Petero’.     -   3. Plants of the new Kalanchoe have larger flowers than plants         of ‘Petero’.     -   4. Plants of the new Kalanchoe and ‘Petero’ differ in flower         color as flowers of plants of ‘Petero’ are more reddish orange         in color.

Plants of the new Kalanchoe can be compared to plants of the Kalanchoe blossfeldiana ‘Fikaldendi’, disclosed in U.S. Plant Pat. No. 27,886. In side-by-side comparisons, plants of the new Kalanchoe differ primarily from plants of ‘Fikaldendi’ in flower color as flowers of plants of ‘Fikaldendi’ are more reddish orange in color.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Kalanchoe plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Kalanchoe plant.

The photograph on the first sheet is a side perspective view of a typical flowering plant of ‘Dokallasc’ grown in a container.

The photograph on the second sheet is a close-up view of a typical open flower and flower buds of ‘Dokallasc’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations, measurements and values describe plants grown during the autumn in 10-cm containers in a glass-covered greenhouse in De Lier, The Netherlands and under cultural practices typical of commercial Kalanchoe production. During the production of the plants, day temperatures ranged from 20° C. to 25° C., night temperatures ranged from 20° C. to 21° C. and light levels ranged from 10,000 lux to 55,000 lux. Plants received long day/short night conditions (more than 14 hours of light) for four weeks then plants received photoinductive short day/long night conditions (minimum 14 hours darkness) until flowering. Plants were 13 weeks old when the photographs were taken and twelve weeks old when the description was taken. In the detailed description, color references are made to The Royal Horticultural Society Colour Chart, 2007 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Kalanchoe blossfeldiana ‘Dokallasc’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of Kalanchoe             blossfeldiana identified as code number KA-177, not             patented.         -   Male or pollen parent.—Kalanchoe blossfeldiana ‘Petero’,             disclosed in U.S. Plant Pat. No. 12,155. -   Propagation:     -   -   Type.—By vegetative terminal cuttings.         -   Time to initiate roots, summer.—About eleven days at             temperatures about 21° C.         -   Time to initiate roots, winter.—About two weeks at             temperatures about 21° C.         -   Time to produce a rooted young plant, summer.—About three             weeks at temperatures about 21° C.         -   Time to produce a rooted young plant, winter.—About four             weeks at temperatures about 21° C.         -   Root description.—Fine, fibrous; typically greyish white in             color, actual color of the roots is dependent on substrate             composition, water quality, fertilizer type and formulation,             substrate temperature and physiological age of roots.         -   Rooting habit.—Moderately freely branching; medium density. -   Plant description:     -   -   Plant and growth habit.—Compact, upright and uniformly             mounded plant habit; freely flowering habit with numerous             cymes positioned above the foliar plane; triangular in shape             with rounded crown; appropriate for 10 to 15-cm containers;             moderately vigorous growth habit.         -   Plant height at flowering.—About 16 cm.         -   Plant diameter at flowering.—About 18 cm.         -   Branching habit.—Freely branching habit with about six to             seven lateral branches developing per plant; pinching             (removal of the terminal apex) is not required but will             enhance lateral branch development. -   Lateral branch description:     -   -   Length.—About 12 cm to 15 cm.         -   Diameter.—About 3 mm to 5 mm.         -   Internode length.—About 2 cm to 3 cm.         -   Aspect.—Mostly upright.         -   Strength.—Moderately strong.         -   Texture.—Smooth, glabrous.         -   Color.—Close to 146B. -   Leaf description:     -   -   Arrangement.—Opposite, simple; generally symmetrical.         -   Quantity per plant.—Typically about six to ten mature leaves             and about six to nine generative leaves.         -   Length.—About 10 cm.         -   Width.—About 7 cm.         -   Shape.—Elliptical.         -   Apex.—Acute.         -   Base.—Acute.         -   Margin.—Crenate.         -   Texture and luster, upper and lower surfaces.—Smooth,             glabrous; coriaceous; succulent; glossy.         -   Venation pattern.—Pinnate.         -   Color.—Developing and fully developed leaves, upper surface:             Close to 147A; venation, close to 147A to 147B. Developing             and fully developed leaves, lower surface: Close to 147B;             venation, close to 147B.         -   Petioles.—Length: About 1.4 cm. Diameter: About 4 mm to             8 mm. Texture, upper and lower surfaces: Smooth, glabrous;             coriaceous; succulent. Color, upper surface: Close to 147A             to 147B. Color, lower surface: Close to 147B. -   Flower description:     -   -   Flower arrangement and habit.—Single flowers arranged in             axillary cymes; uniform and freely flowering habit with             usually more than 25 open flowers and more than 25 flower             buds per lateral branch and more than 150 open flowers and             flower buds developing per plant; plants flower continuously             for at least seven weeks.         -   Fragrance.—None detected.         -   Natural flowering season.—Plants of the new Kalanchoe             initiate and develop flowers under short day/long night             conditions or during November and December in the Northern             Hemisphere; flower initiation and development can also be             induced under artificial short day/long conditions (at least             14 hours of darkness).         -   Time to flower.—Early flowering habit, under short day/long             night photoinductive conditions, plants begin flowering             about eight to ten weeks; actual time to flower is primarily             dependent upon temperature and light intensity.         -   Post-production longevity.—Excellent post-production             longevity; plants maintain good foliage and flower substance             for about 54 days under interior conditions; individual             flowers last about 20 days on the plant; flowers persistent.         -   Flower diameter.—About 2.1 cm.         -   Flower length (height).—About 1.5 cm.         -   Flower buds.—Shape: Initially oblong, becoming tubular ovoid             with development. Color, before flower opening: Close to 29B             to 29C.         -   Petals.—Arrangement: Four in a single whorl. Length: About             1 cm. Width: About 6 mm. Aspect: Flat to slightly upright.             Shape: Ovate. Apex: Acute. Base: Obtuse. Margin: Entire.             Texture and luster, upper and lower surfaces: Smooth,             glabrous; shiny. Color: When opening and fully opened, upper             surface: Close to 28A fading towards the margins and base             close to 21A; color becoming closer to 28B with development.             When opening and fully opened, lower surface: Close to             between 29D and 28D; color does not change with development.         -   Sepals.—Appearance: Four in a single whorl. Length: About             9 mm. Width: About 3 mm. Shape: Oblong, pointed. Apex:             Acute. Base: Rounded. Margin: Entire. Aspect: Upright,             rigid. Texture and luster, upper and lower surfaces: Smooth;             glabrous; shiny. Color, upper and lower surfaces: Close to             138D.         -   Peduncles.—Length: About 3 mm to 5 mm. Diameter: About 1 mm.             Aspect: Erect, rigid. Strength: Moderately strong. Texture:             Smooth, glabrous. Color: Close to 138B.         -   Reproductive organ.—Androecium: Stamen number: About eight             per flower. Anther shape: Elliptic, flat. Anther length:             About 0.3 mm. Anther color: Close to 150D. Amount of pollen:             Scarce. Pollen color: Close to 12A. Gynoecium: Pistil             number: About four. Pistil length: About 1 cm. Style length:             About 7 mm. Style color: Close to 138D. Stigma shape: Flat.             Stigma color: Close to 8D. Ovary color: Close to 138D.         -   Seeds.—Length: About 0.1 mm. Diameter: About 0.05 mm. Color:             Close to 166C. -   Temperature tolerance: Plants of the new Kalanchoe have been     observed to tolerate temperatures from about 16° C. to about 35° C. -   Pathogen & pest resistance: Plants of the new Kalanchoe have not     been observed to be resistant to pests and pathogens common to     Kalanchoe plants to date. 

It is claimed:
 1. A new and distinct Kalanchoe plant named ‘Dokallasc’ as illustrated and described. 